package me.cat.text1.demo1;

public class StudentDemo {
    public static void main(String[] args) {
        //创建对象
        Demo s = new Demo();
        //使用对象
        s.name = "李华";
        s.age = 18;
        System.out.println(s.name + "," + s.age);
        s.study();
        s.doHomework();
    }
}
